Senior PHP Developer (Symphony)

IESF AG; Brussel; On-site; Confidentiel; Full time

Benefits offered by this job

Impactful Work

Cutting-Edge Projects

Continuous Learning

Collaboration & Knowledge Sharing

Professional Growth

Work-Life Balance

International Environment

Job summary

A leading software supplier in Brussels is seeking a Senior PHP (Symfony) developer. The ideal candidate will have 15+ years of experience and expertise in the PHP Symfony framework. Responsibilities include building robust back-end services and contributing to impactful technical projects in a collaborative international environment.

Qualifications

• At least 15 years of professional experience in the IT sector.
• Deep hands-on expertise with PHP Symfony framework.
• Strong knowledge of modern web technologies and data management.

Responsibilities

• Build and maintain robust back-end services and dynamic web applications.
• Take ownership of the full development lifecycle.
• Write clean, reliable, and thoroughly tested code.

Skills

PHP Symfony framework

MVC frameworks

JavaScript

Angular

Node.js

HTML5

CSS

Oracle RDBMS

CI/CD practices

English proficiency

Education

University degree in IT or related field

Tools

Jira

Git

Bamboo

Job description

Our client is a leading supplier of software products in the field of eCustoms internationally.

The company supplies software products and IT services to European Union Institutions and Agencies, international organisations and national government administrations.

The company employs over 1100 engineers, IT experts and consultants (around 3% PhD, 41% MSc and 54% BSc or equivalent). The group’s staff is multilingual and multinational with in-depth experience in the delivery of services to the government sector worldwide.

Currently we are looking for a Senior PHP (Symphony) developer to join the team as a long-term Contractor (B2B) / Freelancer.

Based in Brussels, Belgium.

Tasks

• Build and maintain robust back-end services and dynamic web applications using PHP (Symfony) and other modern MVC frameworks.
• Take ownership of the full development lifecycle — from technical analysis and design to testing, documentation, and deployment — while ensuring front-end applications meet W3C standards.
• Write clean, reliable, and thoroughly tested code by applying best practices and a methodical approach.
• Play an active role in shaping and evolving our technical architecture to support future growth and innovation.

Requirements

• At least 15 years of professional experience in the IT sector
• A university degree in IT or a related field
• Deep hands-on expertise with PHP Symfony framework.
• Solid background in using MVC-compliant frameworks and scripting languages (e.g., JavaScript/Angular, Node.js), ideally within service-oriented architectures
• Strong knowledge of modern web technologies across data and middle-tier layers.
• Proficiency in HTML5, CSS, Angular, and Bootstrap for building responsive, user-friendly interfaces
• Experience working with XML and JSON/REST for managing data flows.
• Strong understanding of Oracle RDBMS.
• Familiarity with CI/CD practices and tools such as Jira, Git, and Bamboo.
• Experience with AngularJS is a significant plus.
• Exposure to text-mining operations is considered an asset.
• Excellent command of English, both written and spoken.

Benefits

• Impactful Work – Contribute to mission-critical systems and help shape the evolution of the organization’s technical architecture.
• Cutting-Edge Projects – Work with modern frameworks (Symfony, Angular, Node.js) and advanced tools (CI/CD, Git, Bamboo) in a service-oriented architecture environment.
• Continuous Learning – Opportunities to deepen your expertise in emerging technologies such as text mining, data flows, and next-generation web standards.
• Collaboration & Knowledge Sharing – Join a team of seasoned professionals where your experience is valued, and knowledge exchange is encouraged.
• Professional Growth – Gain exposure to large-scale, high-impact IT projects and expand your skills across front-end, back-end, and data layers.
• Work-Life Balance – Flexible working arrangements to support productivity and well-being.
• International Environment – Be part of a multicultural, English-speaking workplace that values diversity and inclusivity.